--- src/common.h.orig	Sun Mar 20 13:48:18 2016
+++ src/common.h	Sun Mar 20 13:53:00 2016
@@ -27,6 +27,7 @@
 #include <errno.h>
 #include <sys/types.h>
 #include <grp.h>
+#include <pwd.h>
 #include <unistd.h>
 
 /* GETGROUPS_T gets set in the makefile by configure */
@@ -52,6 +53,7 @@ extern const char* logident;
 #define MAIL_ILLEGAL_COMMAND 6
 #define ADDALIAS_USAGE_ERROR 7
 #define GROUP_NAME_NOT_FOUND 8
+#define USER_NAME_NOT_FOUND 9
 
 
 /*